Top 6 component-testing open source projects

REST API Testing Tool for all levels in a Test Pyramid

sample applications with implementation of unit, component, contract and integrarion tests using pact, gatling, spring boot test and hoverfly

(test-)framework agnostic utilities to test real styling of (virtual) dom elements

Dead simple library for annotating steps of test case scenarios.

✅ Beyond the basics of Node.js testing. Including a super-comprehensive best practices list and an example app (April 2022)

bUnit is a testing library for Blazor components that make tests look, feel, and runs like regular unit tests. bUnit makes it easy to render and control a component under test’s life-cycle, pass parameter and inject services into it, trigger event handlers, and verify the rendered markup from the component using a built-in semantic HTML comparer.